Nightlife & Clubs · Siam (Pathum Wan) · ฿400–600
Philtration, located on Kasem San 3 Alley in Siam, combines live music with mid-range cocktails and a noted beer selection for evening crowds and patrons.
#32 of 71 nightlife & clubs in Siam (Pathum Wan)+0.1 vs the Siam (Pathum Wan) average of 4.6
What reviewers say
Discovering this basement bar requires navigating through a heritage building—reviewers praise the hunt as part of the allure. Herbal-infused cocktails and knowledgeable bartenders earn consistent accolades. Most service runs flawlessly; however, a few late-night visits brought minimal explanations and cursory presentation. One guest felt dismissed based on casual attire.
- Speakeasy entrance through heritage building
- Thai herbal cocktails, unique flavors
- Expert bartenders, professional service
- Live jazz and moody atmosphere
- Entrance extremely difficult to locate
- Inconsistent service late in evening
- May dismiss casually-dressed visitors
Editorial summary by Best of Thailand, based on 20 Google Maps reviews as of September 2026.
Reviews
No reviews yet — be the first.
